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Service bulletins for the 2023 Jeep Wrangler

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

527 on file from NHTSA, as of 2026-10-19.

About P0CA6 on the 2023 Jeep Wrangler: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: P0CA6 are shown. Show all

Bulletins, newest first
08-039-262026-02-12. Service bulletin. ELECTRICAL SYSTEM. Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0B28-00 - Hybrid/EV Battery “B” Voltage Unstable. ● P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. ● P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed. ● P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. ● P0CA6-00 - Hybrid/EV Battery Charging Current High. ● P0B24-00 - Hybrid/EV Battery "A" Voltage Unstable. ● P1C5E-00 - Hybrid/EV Battery State Of Health Failed. ● P0DAB-00 - Hybrid/EV Cell Balancing Performance. ● P0607-00 - ECU Internal Performance. Customers may also comment on the following: ● Vehicle does not start. NOTE: The no start condition is accompanied with the following DTCs: P0DAB-00, P0607-00, P0AA1-00, P0AA4-00, P0C78-00, P0CA6-00, P0B24-00 and/or P1C5E-00. P0B28-00 will result in a MIL for 49 days. After 49 days of the MIL, the vehicle will no longer be allowed to start. This bulletin involves reprogramming the BPCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective, the following modules
08-104-24 REV. A2024-12-18. Service bulletin. ELECTRICAL SYSTEM. "Flash: Battery Pack Control Module (BPCM) Enhancements Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **P0DAB - Hybrid/EV Cell Balancing Performance.** ● P0AA4 - Hybrid/EV Battery Negative Contactor 'A' Circuit Stuck Closed. ● P0AA1 - Hybrid Battery Positive Contactor Circuit Stuck Closed. ● P0CA6 - Hybrid/EV Battery Charging Current High. ● P0B24 - Unstable Hybrid Battery ‘A’ Voltage. ● P1C5E - Battery State or Health Failed. ● P0BBE - No Start - Loss or Reduction of Propulsion. ● P0607-00 - ECU Internal Performance. ● P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. This bulletin involves reprogramming the BPCM with the latest software available. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update. ● Powertrain Control Module (PCM). ● Transmission Control Module (TCM). ● Integrated Dual Charging Control Module (IDCM). ● Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM)"
S23080001172024-01-08. Service bulletin. HYBRID PROPULSION SYSTEM. Check Engine Light On, P0CA6-00 Hybrid/EV Battery Charging Current High
S23080001172023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Check Engine Light On, P0CA6-00 Hybrid/EV Battery Charging Current High

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.